Twelve tenets across four investment domains
A stock is evaluated as a whole business by passing it through four filters: business tenets (simple, understandable, consistent operating history, favorable long-term prospects), management tenets (rational capital allocation, candor with shareholders, resistance to the institutional imperative), financial tenets (return on equity rather than earnings per share, owner earnings, high profit margins, each retained dollar creating at least a dollar of market value), and market tenets (intrinsic value, and purchase at a significant discount to it). A purchase is justified only when it passes all four domains, so the price paid becomes the last check rather than the first.